Office shell



FIG. 1 is a top perspective view of an office shell showing my new design in a closed state;

FIG. 2 is a top perspective view of an office shell shown in an open state;

FIG. 3 is a front perspective view of an office shell shown in an open state; and,

FIG. 4 is a top perspective view of an office shell shown in a closed state.

The broken lines depict portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for an office shell, as shown and described. 